Improvement in wood-pavement



- m AVEMENT.

q MAY 24 1870 HERMAN m.

HERMAN HAUPT, OF

MM 1mm: No. 103,328,dated'1l[ay 24, 1870.

strut PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN WOOD-PAVEMENT.

The Schedule referred to in these Letters Patent and making part of the same.

v To whom it may concern 5 Be it known that I, HERMAX' HAL'IT, or the city and county of Philadelphia and State of Pennsylvania,

' have invented a new, useful, and improved Wooden Paveinent'for Streets; and that the following is afull, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawing and'to thc'leiters of reference marked thereon.

Figure 1 is a transverse section.

Figure 2 is a longitudinal section.

A A A, strips of plank, laid longitudinally.

B B B, transverse beams, with shoulders and tongues to support and separate the paving-blocks.

O (3 0, blocks which form roadway.

,S S S, openings which allow water to escape,

Construction. Pieces of plank or joists, A, are placed longitudinally 011 the graded surface of the road-bed to afford support to the superstructure.

On these joists transverse beams, B, are placed,

which may have shoulders to support the blocks that form the roadway, and tongues or projections for the double purpose of separating the blocks and of increasing the depth and stifliiess of the beams, which tongnes'nniy be. formed either by cutting down the shoulders on the beam B, or by a second piecefirmly secured on top, or by a piece attached to each side.

The spaces between the paving-blocksare filled in any manner that may be preferred, either by wood, on

by sand, grave], or other material.

The tongue projectin from the transverse imam is not essential, although it is preferred. If the tongue is omitted, the spaces between the paving-blocks may be regulated by a movable strip. 1

The advantages claimed for this mode of construction are that, by the combination of the transverse and longitudinal timbers, the pressure is distributed over an extended surface, that it is much'casier and less expensive to cut shoulders upon the long transverse strips B than upon the upon the short pavingblocks 0, and that the transverse beams B can, by this arrangement, he made as deep as necessary, to give any desired stil'lness to the roadway.

If water should percolate through the roadway, it will flow off through tbodrains S.

Having described my invention,

, What I claim, and desire to secure by Letters Patcnl', is

A wood pavement, composed of three elements in combination, viz., first, longitudinal timbers or planks placed on the graded suriaceof the road-bed, as described; second, trausverse beams, constructed substantially as herein shown and described, and placed upon said longitudinal timbers or planks, as set forth; third, paving-blocks, supported by the said beams, substantially as herein shown and described.

In testimony whereof I have signed, my name to this specification heibre two subscribing witnesses HERMAN HAUP'l.

Witnesses SAML. A. Dnsoas, Emr. F. Bnown. 

